you dont have to lift it 4"...you could do a 1.5" lift with some 275/50's or 60's...here are 60's (pic below, IDK if the 60's would fit, so you may need a 2" lift...but I am pretty sure 50's would fit)...I love the look and I dont think that size would mess with your warranty, especially if you got a programmer and/or had the dealer recalibrate the spedo for the new tires